Overview Of Routing Information Protocol (Rip); In This Chapter; Configuring Rip Parameters - Dell PowerConnect B-RX Configuration Manual

Configuring RIP

In this chapter

Overview of Routing Information Protocol (RIP)

Routing Information Protocol (RIP) is an IP route exchange protocol that uses a distance vector (a
number representing distance) to measure the cost of a given route. The cost is a distance vector
because the cost often is equivalent to the number of router hops between the device and the
destination network.
A BigIron RX can receive multiple paths to a destination. The software evaluates the paths, selects
the best path, and saves the path in the IP route table as the route to the destination. Typically, the
best path is the path with the fewest hops. A hop is another router through which packets must
travel to reach the destination. If the device receives a RIP update from another router that
contains a path with fewer hops than the path stored in the device's route table, the device
replaces the older route with the newer one. The device then includes the new path in the updates
it sends to other RIP routers, including BigIron RX.
RIP routers, including the device, also can modify a route's cost, generally by adding to it, to bias
the selection of a route for a given destination. In this case, the actual number of router hops may
be the same, but the route has an administratively higher cost and is thus less likely to be used
than other, lower-cost routes.
A RIP route can have a maximum cost of 15. Any destination with a higher cost is considered
unreachable. Although limiting to larger networks, the low maximum hop count prevents endless
loops in the network.

Configuring RIP parameters

Use the following procedures to configure RIP parameters on a system-wide and individual
interface basis.
BigIron RX Series Configuration Guide
53-1001810-01
•
Overview of Routing Information Protocol (RIP). . . . . . . . . . . . . . . . . . . . . . 665
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Configuring RIP parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 665
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Displaying RIP filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 672
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